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TCP Performance Optimizations for Wireless Sensor Networks

Type of publication Peer-reviewed
Publikationsform Proceedings (peer-reviewed)
Publication date 2012
Author Philipp Hurni, Ulrich Bürgi, Markus Anwander, Torsten Braun,
Project Traffic Adaptivity in Wireless Sensor Networks
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Proceedings (peer-reviewed)

Title of proceedings EWSN 2012
Place Trento
DOI 10.1007/978-3-642-28169-3_2

Abstract

Since the appearance of downsized and simpli ed TCP/IP stacks, single nodes from Wireless Sensor Networks (WSNs) have become directly accessible from the Internet with commonly used networking tools and applications (e.g., Telnet or SMTP). However, TCP has been shown to perform poorly in wireless networks, especially across multi- ple wireless hops. This paper examines TCP performance optimizations based on distributed caching and local retransmission strategies of inter- mediate nodes in a TCP connection, and proposes extended techniques to these strategies. The paper studies the impact of di erent radio duty- cycling MAC protocols on the end-to-end TCP performance when using the proposed TCP optimization strategies in an extensive experimental evaluation on a real-world sensor network testbed.
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